BERLIN - NOVEMBER 09:  Schoolchildren attempt to peek through cracks and among roses left by visitors in a still-existing section of the Berlin Wall into the so-called 'death strip,' where East German border guards had the order to shoot anyone attempting to flee into West Berlin, at the Bernauer Strasse memorial on the 20th anniversary of the fall of the Wall on November 9, 2009 in Berlin, Germany. The city of Berlin is celebrating the 20th anniversary of the fall of the Wall, which led to the end of communist rule in East Germany and later on the reunification of East and West Germany, with a spectacular event at the Brandenburg Gate and the participation of international leaders. Getty Images logo Getty Images 1 week ago

BERLIN - NOVEMBER 09: Schoolchildren attempt to peek through cracks and among roses left by visitors in a still-existing section of the Berlin Wall into the so-called 'death strip,' where East German border guards had the order to shoot anyone attempting to flee into West Berlin, at the Bernauer Strasse memorial on the 20th anniversary of the fall of the Wall on November 9, 2009 in Berlin, Germany. The city of Berlin is celebrating the 20th anniversary of the fall of the Wall, which led to the end of communist rule in East Germany and later on the reunification of East and West Germany, with a spectacular event at the Brandenburg Gate and the participation of international leaders.